Opening our application by OpenCppCoverage tool takes a long time

At first, I would like to say thank you very much because of the helpfulness of the OpenCppCoverage for my current work.
However, recently I have met a problem when I open my application and in the meantime use the OpenCppCoverage tool . It takes quite a long time to start it. But if only my application is opened without the OpenCppcoverage, it can be very quickly started.
I have tried to solve this problem, but it fails. So I come to ask you for the help.
Do you have any idea or suggest about this?
Thank you very much for your help in advance, and I am waiting for your reply.
With best regards,
Feiyun Lin